CN102941423B - Preparation method of aluminum alloy welding wire - Google Patents
Preparation method of aluminum alloy welding wire Download PDFInfo
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- CN102941423B CN102941423B CN201210523496.1A CN201210523496A CN102941423B CN 102941423 B CN102941423 B CN 102941423B CN 201210523496 A CN201210523496 A CN 201210523496A CN 102941423 B CN102941423 B CN 102941423B
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Abstract
The invention discloses a preparation method of an aluminum alloy welding wire, and belongs to the technical field of aluminum alloy. The preparation method of a high-performance aluminum alloy welding wire comprises the following steps of: (1) coldly and continuously rolling; (2) drawing; (3) shaving; (4) drawing a water tank; (5) carrying out light treatment; (6) cleaning by an ultrasonic wave, and (7) drying by hot air. The preparation method has the characteristics that a partial drawing procedure is replaced by a cold continuous rolling manner, and an aluminum alloy steel wire rod is subsequently processed after being rolled to have specific wire diameter once. Therefore, the drawing passes are reduced; the annealing passes are also reduced; the automation capability of the production process is improved; the utilization rate of the material is greatly improved; the production loss and the labor intensity are reduced; personnel quota is reduced; the production cost is reduced; the shaving procedure is carried out after the traditional water tank is drawn; the procedure is adjusted into the process of firstly shaving and then drawing the water tank; the welding wire is shaved when the wire diameter is large; an oxide skin at the surface of the welding wire is removed early; the welding wire is not easily broken due to high strength when the wire diameter is large; and the quality of the surface of the welding wire and the stability of the quality are greatly improved.
Description
Technical field
The invention belongs to technical field of aluminum alloy technology, disclose a kind of preparation method of aluminium alloy welding wire.
Background technology
For the aluminium alloy welding wire of specialty, no matter domestic aluminium alloy welding wire is in interior quality or in serviceability, all has gap with external product.At present, domestic most aluminium welding wire manufacturing enterprise still adopts chemical method to carry out lightization process to aluminum alloy welding wire surface at present, these techniques not only cause corrosion to a certain degree to welding wire surface, and the thick and heavy oxide skin of welding wire surface cannot thoroughly be removed, welding wire surface is of poor quality, very easily the moisture absorption and continue oxidation.When welding, splashing seriously, easily to fall bits blocking ignition tip, electric arc unstable etc., welding usability and weldquality poor, thus affect the quality of property of welded joint and weldment.
More external industrially developed country: the equipment adopting precision high as many in countries such as the U.S., Italy, France, makes its aluminium alloy welding wire have excellent quality.Its shortcoming is high to the required precision of equipment; The company's of employing drawing process in processing in early stage, make its internal organizational structure, the tensile strength of material is worse than employing rolling mill practice; Its follow-up process for treating surface adopts sizing die, the layer oxide film making welding wire surface formation in wet drawing process and the burr, greasy dirt and the defect that are formed in former procedure process are pressed into welding wire by sizing die, and affect the performance of weld seam; Dry and adopt air blow drying mode, extremely difficult finish-drying welding wire, after welding, weld porosity is many.In addition, home and abroad produces Al and Alalloy welding wire water tank Wet drawing machine and adopts drawing oil as drawing liquid, its shortcoming be welding wire surface greasy dirt in subsequent processes extremely difficulty thoroughly dispose, affect the quality of welding wire and the performance of weld seam.
Summary of the invention
The object of this invention is to provide and solve welding wire depending on unduly high accuracy drawing equipment, improve welding wire inside and outside quality and solve in welding process and easily fall that bits blocking ignition tip, electric arc are unstable, the preparation method affecting a kind of aluminium alloy welding wire of the problem of welding usability and weldquality difference such as serious of splashing.
The object of the invention is by realize with under type:
A preparation method for aluminium alloy welding wire, is characterized in that:
(1), first utilize cold-rolling mill to be undertaken cold rolling by φ 5.5 ~ φ 10.5mm aluminium alloy wire rod, aluminium alloy wire rod total draught Q is 80% to the maximum;
(2), in single machine drawing the aluminium alloy wires after cold rolling is carried out 2 passes of drawing, every time compression ratio q is 25 ~ 55% of upper a time diameter;
(3), utilize the involutory spun gold of drag scraper to carry out scraping, scraping speed is 5 ~ 20m/s;
(4), the complete alloy welding wire of scraping carries out finishing drawing on water tank Wet drawing machine is standby, and adopt the water base drawing liquid of LB-52, by the drawing of 8 ~ 11 passes of drawing moulds, every time compression ratio q is 15 ~ 18%;
(5), lightization process: welding wire after the drawing of water tank Wet drawing machine, utilize the involutory spun gold surface of shaving molds carry out lightization process, make welding wire surface roughness be Ra≤0.2 μm,
(6) aluminium alloy welding wire, after lightization first carries out online ultrasonic wave alkali cleaning, then carries out pickling, wherein alkali groove pH=10 ~ 14, acid tank pH=1 ~ 5;
(7), carry out hot-air seasoning after, coiling pack.
Advantage of the present invention is:
Reduce the dependence to high accuracy drawing equipment, by cold rolling technology generations for part drawing process, reduction drawing passes and annealing passage, be conducive to refiner material crystal grain, optimize internal organizational structure, improve the tensile strength of material, and the aluminium alloy wires product size of cold continuous rolling is accurate, O.01-0.03mm deviation from circular from is generally no more than or less, can meet the requirement of high tolerance completely; Aluminium alloy wires surface quality is superior, has good mechanical property and processing performance; High-speed rolling and continous rolling can be realized, there is very high productivity ratio.First carry out the technique of scraping rear water box drawing, when large wire diameter, scraping is carried out to welding wire, the thick and heavy oxide skin of welding wire surface being removed more early, avoids, when wet drawing, thick and heavy oxide skin is pressed into welding wire matrix, causes the problems such as welding wire slag inclusion, scuffing and fracture of wire; And when large wire diameter scraping, welding wire tensile strength height not easily scrapes disconnected welding wire; Carry out finishing drawing on water tank Wet drawing machine is standby, adopt the water base drawing liquid of LB-52, and non-oily drawing liquid, very easily clean and welding wire can not be polluted, the stability of welding wire surface quality and quality is increased substantially; The greasy dirt that welding wire surface is fallen in soda acid eccysis generates very thin, the fine and close passivation layer of one deck at welding wire surface simultaneously, and prevention welding wire is oxidized further, the moisture absorption; Hyperacoustic cavitation and the effect of original position high-frequency resonant, can make the greasy dirt of welding wire surface, bubble conquassation comes off in time, and cleaning performance is excellent.Dry and adopt hot blast drying mode, finish-drying welding wire, avoids welding rear weld seam and occurs pore.
Detailed description of the invention
Below in conjunction with detailed description of the invention, present invention process is further supplemented and explanation.These embodiments are illustrative and should be interpreted as limiting the present invention.
Table one, JB/T 56098-1999 Al and Alalloy Quality of Final Welding Wire grading index.
Table two GB/T10858-2008 Al and Alalloy welding wire chemical composition
Embodiment 1
As follows to the preparation method of the ER5183 aluminium alloy welding wire of φ 1.6:
(1), first utilize cold-rolling mill to be undertaken cold rolling by φ 10.5mm aluminium alloy wire rod, disposablely roll φ 4.0mm;
(2), the aluminium alloy wires of cold rolling rear φ 4.0mm carries out 2 passes of drawing in single machine drawing, is drawn to φ 2.4mm;
(3), utilize the involutory spun gold of drag scraper to carry out scraping, scraping speed is 14m/s;
(4), the complete alloy welding wire of scraping carries out finishing drawing on water tank Wet drawing machine, and adopt the water base drawing liquid of LB-52, every time mean pressure shrinkage is 17%, is pulled out, be drawn to φ 1.68mm by 8 passes of drawing die drawings;
(5), utilize φ 1.6mm shaving molds to carry out lightization process to φ 1.68mm B alloy wire surface, its roughness is Ra=0.1 μm;
(6), online ultrasonic wave alkali cleaning and pickling is carried out, alkali groove pH=10 ~ 14 in ultrasonic cleaner, acid tank pH=1 ~ 5;
(7), carry out hot-air seasoning, coiling is packed.
To the quality inspection of above-mentioned ER5183 aluminium alloy welding wire
First test to the ER5183 aluminium alloy welding wire external quality of described φ 1.6, assay is in table three; Its inherent quality is tested evaluation, the results are shown in Table four.Welding equipment adopts French Sa to float SAFMIG 330/480 TRI type semi-automatic arc welder; Test piece for welding parent metal adopts T73 state aluminium alloy boards 7075, thickness of slab 8mm, opens V-arrangement cut, through oil removing and the process of removing oxide-film; ER5183 aluminum alloy welding filament diameter is φ 1.6, welding current 260 ~ 320A, argon flow amount 16 ~ 20L/min.
Table three ER5183 aluminium alloy welding wire external quality is checked
Table four ER5183 aluminium alloy welding wire inherent quality Interventions Requested
Quality evaluation is carried out to above-mentioned welding wire:
Grade according to JB/T 56098-1999 Al and Alalloy Quality of Final Welding Wire and quality evaluation is carried out to the ER5183 aluminium alloy welding wire external quality of φ 1.6, result is external quality (mark) is 96(>=95), average root time qualification rate % is 95(>=95), face shaping is even, neat, bright, attractive in appearance; After inherent quality calibrating, chemical composition analysis meets, and welding wire mechanical property meets instructions for use, and welding wire springback angle is 10 ° (>=8 °), and welding wire sticks up apart from being 8mm(≤10mm).Therefore, according to ER5183 aluminium alloy welding wire external quality and inherent quality inspection, can judge that the ER5183 aluminium alloy welding wire of φ 1.6 is as high-class product.
Embodiment 2
The preparation method of the present invention to the ER5556 aluminium alloy welding wire of φ 1.6 is as follows:
(1), first utilize cold-rolling mill to be undertaken cold rolling by φ 9.5mm aluminium alloy wire rod, disposablely roll φ 4.0mm;
(2), the aluminium alloy wires of cold rolling rear φ 4.0mm carries out 2 passes of drawing in single machine drawing, is drawn to φ 2.4mm;
(3), utilize the involutory spun gold of drag scraper to carry out scraping, the aluminium alloy wires adjustment scraping speed according to ER5556 model is 15m/s;
(4), the complete alloy welding wire of scraping will carry out finishing drawing on water tank Wet drawing machine, adopts the water base drawing liquid of LB-52, is drawn to φ 1.68mm by 10 road drawing dies;
(5), utilize φ 1.6mm shaving molds to carry out lightization process to φ 1.68mm B alloy wire surface, its roughness is Ra=0.1 μm;
(6), online ultrasonic wave alkali cleaning and pickling is carried out, alkali groove pH=10 ~ 14 in ultrasonic cleaner, acid tank pH=1 ~ 5;
(7), carry out hot-air seasoning after, coiling pack.
To above-mentioned aluminium alloy welding wire quality inspection
First test to the ER5556 aluminium alloy welding wire external quality of φ 1.6, assay is in table five; Its inherent quality is tested evaluation, the results are shown in Table six.Welding equipment adopts French Sa to float SAFMIG 330/480 TRI type semi-automatic arc welder; Test piece for welding parent metal adopts T73 state aluminium alloy boards 7075, thickness of slab 8mm, opens V-arrangement cut, through oil removing and the process of removing oxide-film; ER5556 aluminum alloy welding filament diameter is φ 1.6, welding current 260 ~ 320A, argon flow amount 16 ~ 20L/min.
Table five ER5556 aluminium alloy welding wire external quality is checked
Table six ER5556 aluminium alloy welding wire inherent quality Interventions Requested
Quality evaluation is carried out to above-mentioned welding wire:
Grade according to JB/T 56098-1999 Al and Alalloy Quality of Final Welding Wire and quality evaluation is carried out to the ER5556 aluminium alloy welding wire external quality of φ 1.6, result is external quality (mark) is 95(>=95), average root time qualification rate % is 95.5(>=95), face shaping is even, neat, bright, attractive in appearance; After inherent quality calibrating, chemical composition analysis meets, and welding wire mechanical property meets instructions for use, and welding wire springback angle is 9 ° (>=8 °), and welding wire sticks up apart from being 8mm(≤10mm).Therefore, according to ER5556 aluminium alloy welding wire external quality and inherent quality inspection, can judge that the ER5556 aluminium alloy welding wire of φ 1.6 is as high-class product.
Embodiment 3
The preparation method of the present invention to the ER5356 aluminium alloy welding wire of φ 1.6 is as follows:
(1), first utilize cold-rolling mill to be undertaken cold rolling by φ 9.5mm aluminium alloy wire rod, disposablely roll φ 4.0mm;
(2), the aluminium alloy wires of cold rolling rear φ 4.0mm carries out 2 passes of drawing in single machine drawing, is drawn to φ 2.4mm;
(3), utilize the involutory spun gold of drag scraper to carry out scraping, the aluminium alloy wires adjustment scraping speed according to ER5356 model is 13m/s;
(4), the complete alloy welding wire of scraping will carry out finishing drawing on water tank Wet drawing machine, adopts the water base drawing liquid of LB-52, is drawn to φ 1.68mm by 10 road drawing dies;
(5), utilize φ 1.6mm shaving molds to carry out lightization process to φ 1.68mm B alloy wire surface, its roughness is Ra=0.1 μm;
(6), online ultrasonic wave alkali cleaning and pickling is carried out, alkali groove pH=10 ~ 14 in ultrasonic cleaner, acid tank pH=1 ~ 5;
(7), carry out hot-air seasoning after, coiling pack.
To above-mentioned aluminium alloy welding wire quality inspection
First test to the ER5356 aluminium alloy welding wire external quality of φ 1.6, assay is in table seven; Its inherent quality is tested evaluation, the results are shown in Table eight.Welding equipment adopts French Sa to float SAFMIG 330/480 TRI type semi-automatic arc welder; Test piece for welding parent metal adopts T73 state aluminium alloy boards 7075, thickness of slab 8mm, opens V-arrangement cut, through oil removing and the process of removing oxide-film; ER5356 aluminum alloy welding filament diameter is φ 1.6, welding current 260 ~ 320A, argon flow amount 16 ~ 20L/min.
Table seven ER5356 aluminium alloy welding wire external quality is checked
Table eight ER5356 aluminium alloy welding wire inherent quality Interventions Requested
Quality evaluation is carried out to above-mentioned welding wire:
Grade according to JB/T 56098-1999 Al and Alalloy Quality of Final Welding Wire and quality evaluation is carried out to the ER5356 aluminium alloy welding wire external quality of φ 1.6, result is external quality (mark) is 96(>=95), average root time qualification rate % is 97(>=95), face shaping is even, neat, bright, attractive in appearance; After inherent quality calibrating, chemical composition analysis meets, and welding wire mechanical property meets instructions for use, and welding wire springback angle is 9 ° (>=8 °), and welding wire sticks up apart from being 8mm(≤10mm).Therefore, according to ER5356 aluminium alloy welding wire external quality and inherent quality inspection, can judge that the ER5356 aluminium alloy welding wire of φ 1.6 is as high-class product.
Embodiment 4
The preparation method of the present invention to the ER4043 aluminium alloy welding wire of φ 1.6 is as follows:
(1), first utilize cold-rolling mill to be undertaken cold rolling by φ 9.5mm aluminium alloy wire rod, disposablely roll φ 4.0mm;
(2), the aluminium alloy wires of cold rolling rear φ 4.0mm carries out 2 passes of drawing in single machine drawing, is drawn to φ 2.4mm;
(3), utilize the involutory spun gold of drag scraper to carry out scraping, the aluminium alloy wires adjustment scraping speed according to ER4043 model is 6m/s;
(4), the complete alloy welding wire of scraping will carry out finishing drawing on water tank Wet drawing machine, adopts the water base drawing liquid of LB-52, is drawn to φ 1.68mm by 9 road drawing dies;
(5), utilize φ 1.6mm shaving molds to carry out lightization process to φ 1.68mm B alloy wire surface, its roughness is Ra=0.1 μm;
(6), online ultrasonic wave alkali cleaning and pickling is carried out, alkali groove pH=10 ~ 14 in ultrasonic cleaner, acid tank pH=1 ~ 5;
(7), carry out hot-air seasoning after, coiling pack.
To above-mentioned aluminium alloy welding wire quality inspection
First test to the ER4043 aluminium alloy welding wire external quality of φ 1.6, assay is in table nine; Its inherent quality is tested evaluation, the results are shown in Table ten.Welding equipment adopts French Sa to float SAFMIG 330/480 TRI type semi-automatic arc welder; Test piece for welding parent metal adopts T4 state aluminium alloy boards 6061, thickness of slab 8mm, opens V-arrangement cut, through oil removing and the process of removing oxide-film; ER4043 aluminum alloy welding filament diameter is φ 1.6, welding current 260 ~ 320A, argon flow amount 16 ~ 20L/min.
Table nine ER4043 aluminium alloy welding wire external quality is checked
Table ten ER4043 aluminium alloy welding wire inherent quality Interventions Requested
Quality evaluation is carried out to above-mentioned welding wire:
Grade according to JB/T 56098-1999 Al and Alalloy Quality of Final Welding Wire and quality evaluation is carried out to the ER4043 aluminium alloy welding wire external quality of φ 1.6, result is external quality (mark) is 97(>=95), average root time qualification rate % is 95(>=95), face shaping is even, neat, bright, attractive in appearance; After inherent quality calibrating, chemical composition analysis meets, and welding wire mechanical property meets instructions for use, and welding wire springback angle is 10 ° (>=8 °), and welding wire sticks up apart from being 7mm(≤10mm).Therefore, according to ER4043 aluminium alloy welding wire external quality and inherent quality inspection, can judge that the ER4043 aluminium alloy welding wire of φ 1.6 is as high-class product.
Embodiment 5
The preparation method of the present invention to the ER2319 aluminium alloy welding wire of φ 1.6 is as follows:
(1), first utilize cold-rolling mill to be undertaken cold rolling by φ 9.5mm aluminium alloy wire rod, disposablely roll φ 4.0mm;
(2), the aluminium alloy wires of cold rolling rear φ 4.0mm carries out 2 passes of drawing in single machine drawing, is drawn to φ 2.4mm;
(3), utilize the involutory spun gold of drag scraper to carry out scraping, the aluminium alloy wires adjustment scraping speed according to ER2319 model is 9m/s;
(4), the complete alloy welding wire of scraping will carry out finishing drawing on water tank Wet drawing machine, adopts the water base drawing liquid of LB-52, is drawn to φ 1.68mm by 10 road drawing dies;
(5), utilize φ 1.6mm shaving molds to carry out lightization process to φ 1.68mm B alloy wire surface, its roughness is Ra=0.1 μm;
(6), online ultrasonic wave alkali cleaning and pickling is carried out, alkali groove pH=10 ~ 14 in ultrasonic cleaner, acid tank pH=1 ~ 5;
(7), carry out hot-air seasoning after, coiling pack.
To above-mentioned aluminium alloy welding wire quality inspection
First test to the ER2319 aluminium alloy welding wire external quality of φ 1.6, assay is in table ten one; Its inherent quality is tested evaluation, the results are shown in Table 12.Welding equipment adopts French Sa to float SAFMIG 330/480 TRI type semi-automatic arc welder; Test piece for welding parent metal adopts T4 state aluminium alloy boards 2014, thickness of slab 8mm, opens V-arrangement cut, through oil removing and the process of removing oxide-film; ER2319 aluminum alloy welding filament diameter is φ 1.6, welding current 260 ~ 320A, argon flow amount 16 ~ 20L/min.
Table ten one ER2319 aluminium alloy welding wire external quality is checked
Table ten two ER2319 aluminium alloy welding wire inherent quality Interventions Requested
Quality evaluation is carried out to above-mentioned welding wire:
Grade according to JB/T 56098-1999 Al and Alalloy Quality of Final Welding Wire and quality evaluation is carried out to the ER2319 aluminium alloy welding wire external quality of φ 1.6, result is external quality (mark) is 96(>=95), average root time qualification rate % is 96(>=95), face shaping is even, neat, bright, attractive in appearance; After inherent quality calibrating, chemical composition analysis meets, and welding wire mechanical property meets instructions for use, and welding wire springback angle is 11 ° (>=8 °), and welding wire sticks up apart from being 6mm(≤10mm).Therefore, according to ER2319 aluminium alloy welding wire external quality and inherent quality inspection, can judge that the ER2319 aluminium alloy welding wire of φ 1.6 is as high-class product.
Claims (1)
1. a preparation method for aluminium alloy welding wire, is characterized in that:
(1), first utilize cold-rolling mill to be undertaken cold rolling by φ 5.5 ~ φ 10.5mm aluminium alloy wire rod, aluminium alloy wire rod total draught Q is 80% to the maximum;
(2), in single machine drawing the aluminium alloy wires after cold rolling is carried out 2 passes of drawing, every time compression ratio q is 25 ~ 55% of upper a time diameter;
(3), utilize drag scraper to carry out scraping to the B alloy wire of step 2, scraping speed is 5 ~ 20m/s;
(4), the complete B alloy wire of scraping carries out finishing drawing on water tank Wet drawing machine is standby, and adopt the water base drawing liquid of LB-52, by the drawing of 8 ~ 11 passes of drawing moulds, every time compression ratio q is 15 ~ 18%;
(5), lightization process: welding wire, after the drawing of water tank Wet drawing machine, utilizes the involutory spun gold surface of shaving molds to carry out lightization process, makes welding wire surface roughness be Ra≤0.2 μm;
(6) aluminium alloy welding wire, after lightization first carries out online ultrasonic wave alkali cleaning, then carries out pickling, wherein alkali groove pH=10 ~ 14, acid tank pH=1 ~ 5;
(7), carry out hot-air seasoning after, coiling pack.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105772992A (en) * | 2016-03-18 | 2016-07-20 | 中国兵器工业第五二研究所 | Novel aluminum alloy welding wire preparation method |
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| CN103286481B (en) * | 2013-05-21 | 2015-10-21 | 抚顺东工冶金材料技术有限公司 | A kind of machining manufacture of novel solid welding wire |
| CN104359742B (en) * | 2014-10-13 | 2017-02-22 | 中车青岛四方机车车辆股份有限公司 | Coloring method for wrought aluminum alloy welded joint color metallography |
| CN108393613A (en) * | 2017-02-07 | 2018-08-14 | 湖南德润有色焊材科技有限公司 | A kind of scandium aluminium composite alloy welding wire production system |
| CN107214474B (en) * | 2017-05-22 | 2019-08-20 | 西部超导材料科技股份有限公司 | A kind of preparation method of high-strength Ti6Al7Nb titanium alloy wire materials |
| CN108340098A (en) * | 2018-02-08 | 2018-07-31 | 周天国 | A kind of processing technology of 5183 aluminium alloy semi-finished product welding wire |
| CN109955003B (en) * | 2019-03-27 | 2021-04-20 | 中国航发北京航空材料研究院 | High-strength corrosion-resistant Al-Mg-Zr aluminum alloy welding wire and preparation method thereof |
| CN112692466A (en) * | 2020-12-30 | 2021-04-23 | 江苏和拓铝线有限公司 | Preparation method of aluminum and aluminum alloy welding wire |
| CN113857720A (en) * | 2021-09-28 | 2021-12-31 | 宁德福浦新合金科技有限公司 | Preparation method of 5356 aluminum alloy welding wire |
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